Access account and transaction data using the Teller API

Steps

1. Integrate Teller Connect (the browser/native SDK) into your application; initialize it with your application_id and on successful enrollment receive an enrollment containing an access_token and accounts list
2. Store the access_token server-side; authenticate all Teller API requests using HTTP Basic Auth with the access_token as the username and an empty password
3. Retrieve accounts: GET /accounts returns all accounts for the enrollment; each account has an id, type, subtype, name, institution, and links to sub-resources
4. Retrieve transactions: GET /accounts/{account_id}/transactions; use the count and from_id query parameters for pagination — from_id should be set to the last transaction ID received to fetch older records
5. For balance checks: GET /accounts/{account_id}/balances returns ledger and available balances; note these are live requests to the institution and may be slower than cached data